| About |
|---|
| PMMA is excellent in impact resistance compared to general glasses, but relatively lower among plastics so it is demanded to be improved in this respect. LG MMA has improved the impact resistance of PMMA using acrylic rubbers, and maintained the weatherability. Impact resistant grade of PMMA is applied to the area where impact strength is required such as signboards, lightings, displays, and vending machines.&& |
| Product Description | |
|---|---|
| Generic | PMMA |
| Material Status | Commercial: Active |
| Features | Weather resistance is good,High impact resistance,HB |
| Availabilitys | North America,Latin America,Asia Pacific,Europe |
| Technical Data | |||
|---|---|---|---|
| PHYSICAL | Nominal value | Unit | Test method |
| Density | 1.17 | g/cm³ | ASTM D792 |
| Melt Flow Rate | |||
| 230℃，3.80kg | 0.50 | g/10min | ASTM D1238 |
| Shrinkage rate | |||
| MD | 0.40 to 0.80 | % | ASTM D955 |
| Water absorption rate | |||
| 24hr | 0.40 | % | ASTM D570 |
| IMPACT | Nominal value | Unit | Test method |
|---|---|---|---|
| Impact strength of cantilever beam notch | 54 | J/m | ASTM D256 |
| THERMAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Hot deformation temperature | |||
| 1.8 MPa, unannealed | 77.0 | ℃ | ASTM D648 |
| Vicat Softening Temp | 97.0 | ℃ | ASTM D1525 2 |
| Linear coefficient of thermal expansion | |||
| MD | 7.0E-5 | 1/℃ | ASTM D696 |
| FLAME CHARACTERISTICS | Nominal value | Unit | Test method |
|---|---|---|---|
| Flame retardant level | HB | UL 94 |
| optical performance | Nominal value | Unit | Test method |
|---|---|---|---|
| Refractive index | 1.490 | ASTM D542 | |
| Transmittance | |||
| 3000 µm | 90.0 | % | ASTM D1003 |
| Haze | |||
| 3000 µm | 1.5 | % | ASTM D1003 |
| MECHANICAL | Nominal value | Unit | Test method |
|---|---|---|---|
| tensile strength | |||
| yield | 39.2 | MPa | ASTM D638 |
| Tensile strain | |||
| yield | 90 | % | ASTM D638 |
| Bending modulus | 1530 | MPa | ASTM D790 |
| bending strength | |||
| yield | 69.6 | MPa | ASTM D790 |
| Rockwell hardness | |||
| M-level | 43 | ASTM D785 |
| Process Conditions | |||
|---|---|---|---|
| injection | Nominal value | Unit | Test method |
| Drying temperature | 60 to 70 | °C | |
| Drying time | 4.0 to 6.0 | hr | |
| Recommended maximum moisture content | 0.10 | % | |
| Barrel rear temperature | 200 to 250 | °C | |
| Barrel middle temperature | 200 to 250 | °C | |
| Barrel front temperature | 200 to 250 | °C | |
| Mold temperature | 60 to 70 | °C | |
| Injection pressure | 49.0 to 108 | MPa | |
| Notes |
|---|
| 1. Typical properties: these are not to be construed as specifications. |
| 2. Loading 1 (10 N) |
| 【 Disclaimer 】 Guangzhou Soliao Information Technology Co., Ltd. reserves all rights. The information in this data table was obtained from the manufacturer of the material on soliao.com. Soliao.com makes every effort to ensure the accuracy of this data. However, the search company does not assume any responsibility for the uncertainty and consequences caused to users by these data values and suggestions, and strongly recommends verifying the data values with the material supplier before the final selection of materials. |